This was such a cool little concept that was so well put together! I found myself playing for far longer than I expected, and I kept on going!
The gameplay is simple and genius enough, run between rooms switching lights back on that those cursed ghoulies have turned off! It can get very manic very quickly, and I found that I would occasionally get flummoxed, but hey, that's what the game is all about, right?
I think you could really make this game something really big by incorporating a level system (maybe start off with a smaller house and have a target of how long to survive, and even different types of ghoulie), but even as a stand-alone one-off experiment this game was an absolute blast! Keep up the amazing work =)